Many webmasters spend a lot of time optimizing their home page only through On Page factors like title tag, H1 tags, Meta tags, keyword density, alt tags, etc. and off Page SEO factors like the number and quality of inward links from other sites. This is good, however according to me you should also take some time to do interlinking of all your web pages. Interlinking can help you achieve high PR value for inner pages and rankings in Search Engine Result Pages (SERP).

How to Achieve this? Well, all of your main web pages must be just one click away from your home page. You should have a well-structured navigation menu on your home page. Each link within the menu should be an anchor text link containing your main keyword(s). You can dramatically enhance this interlinking structure and boost the pagerank of your inner web pages further by including this navigation menu on all of your inner web pages. This means that all of your main inner web pages are always just one click away and will dramatically boost the number of inward links that each page has.

Another way of achieving this effect is by including a link tree on every one of your inner pages at the bottom. This is again a very good way of interlinking your web pages. Be sure to include your main keyword(s) within each link.